baber/WOPTO huggingface dataset:
Patent CA-2049382-C (CA)
Title: Fiber-optic gyroscope with fibre polarizers, depolarizers and coupling means
Inventor: NISHIURA YOZO
IPC: G01C19/72
Filed: 1991-08-16
Granted: 1996-06-04
Abstract: A fibre-optic gyroscope is provided herein for measuring an angular velocity of a fibre coil from a phase difference between a light propagating clockwise and a light propagating counterlockwise in the fibre coil. A light emitting device is provided for emitting a monochromatic light with a definite coherent length. A fibre coil includes a single mode optical fibre wound a plurality of times around a bobbin. A photodetector is provided both for making a light propagating clockwise and a light propagating counterclockwise interfere, thereby producing interference light, and for detecting an intensity of the interference light. A first fibre path is connected to the light emitting device. A fifth fibre path is connected to the photodetector. A third fibre path and a fourth fibre path are each end parts of the fibre coil. A second fibre path is provided, and a first fibre coupler is provided for coupling one end of the second fibre path to both the first fibre path and the fifth fibre path. A second fibre coupler for is provided coupling the other end of the second fibre path to both the third fibre path and the fourth fibre path. A polarizer is located in the second fibre path for polarizing light linearly. A phase modulator is furnished in one of the third fibre path and the fourth fibre path for modulating phases of lights propagating in the fibre path. A first depolarizer, consisting of a single birefringent material, is furnished in the first fibre path for depolarizing lights propagating in the first fibre path by aligning polarization planes of partial lights in all directions so that a probability of one of the partial lights having a given polarization angle is substantially equal to a probability of the one of the partial lights having any other polarization angle. Finally, a second depolarizer is furnished in the third or in the fourth fibre path for depolarizing lights by aligning polarization planes of partial lights in all directions so that a probability of one of the partial lights having a given polarization angle is substantially equal to a probability of the one of the partial lights having any other polarization angle. The light emitted from the light emitting device is transmitted into the polarizer after being depolarized by the first depolarizer.
Patent CA-2055387-C (CA)
Title: Satellite communications system having increased power output density per unit of bandwidth
Inventor: SOLEIMANI MOHAMMAD
IPC: H04B1/707
Filed: 1991-11-13
Granted: 1995-05-16
Abstract: A satellite communication system for providing maximum power output in a spread spectrum signal transmission is disclosed.   Spectral shaping is provided at a satellite transmitter to shape a spread spectrum so that over a bandwidth of interest, the spectrum has a maximally flat characteristic.    By maximizing the  spectrum amplitude flatness, the required bandwidth power density limitation imposed to prevent interference with other communication facilities is maintained.  In each earth station receiving the transmission from the satellite,  filtering of the demodulated baseband satellite signal is provided such that the spectrum is restored to its original shape.   The filters on the receive side may be analog, having the same amplitude-frequency function as the transmitter spectrum shaping filter, but having an inverse phase response.  This ensures a matched filter condition at transmitter and receiver,  maximizing  signal  transfer.    A programmable demodulator is provided to select a demodulation mode.  The programmable demodulator may receive microcode  from  a microprocessor  configuring  the  PLA  into  a  despreader demodulator for spread spectrum applications or into a straight BPSK demodulator where the data signal has not been subject to spectrum spreading.
Patent CA-2055872-C (CA)
Title: Food product
Inventor: ODERMATT ROBERT GERALD
IPC: A23L1/00
Filed: 1991-11-20
Granted: 1997-08-19
Abstract: The invention relates to a process for the production of granules of a food base for sauces and soups from an amylaceous material and a fat, in which the fat is melted and the amylaceous material and the molten fat are mixed, the mixture is extruded in the form of strands, the strands are hardened by cooling and are subdivided into sections and the strand  sections are size-reduced to granules by projection through a grill, and to an apparatus for carrying out this process.
Patent CA-2057975-C (CA)
Title: Gas laser oscillation device and its optical axis alignment method
Inventor: HONGU HITOSHI
IPC: H01S3/081
Filed: 1991-12-18
Granted: 1995-05-09
Abstract: A gas laser oscillator having two discharge tube columns, both ends of which are connected by a bending unit, wherein each column comprises two discharge tubes connected in series. At the opposite ends of the bending unit, one column has a total-reflection mirror, and the other column has a partial-reflection mirror.  These discharge tubes, the bending unit, the total-reflection mirror, and the mirror are mounted to a single optical bench.  each end of the discharge tubes is fixed to the optical bench by means of clamp.  When counted from the clamp nearest to the partial-reflection mirror, the first clamp, the fourth clamp, and the eighth clamp are non-movable with respect to the optical bench, while the remaining clamps are movable, and thus adjustable.  One total-reflection mirror unit of the two total-reflection mirror units on the bending unit is non-movable, and the other total-reflection mirror unit is movable.
Patent CA-2059737-C (CA)
Title: Snow blocking device for attachment to corrugated metal roofs
Inventor: STRICKERT LAWRENCE F
IPC: E04D13/10
Filed: 1992-01-21
Granted: 1995-03-21
Abstract: A roof snow guard for retained assembly with a peaked type of metallic corrugated roof having transversely spaced generally vertically inclined corrugations thereon. The snow guard including an angular bar having an approximate length corresponding to the distance between peaks on the roof. A pair of channel shaped brackets are provided at opposite ends of the angular bar. Welds fixedly connect the channel shaped brackets to opposite ends of the angular bar. The channel shaped brackets each define channels for engagement over the corrugations with the channels extending generally at right angles to the angular bar. The angular bar includes a downwardly extending bar leg positioned between the channel shaped brackets and which is adapted to be positioned in vertically spaced overlying relationship to the metallic corrugated roof for inhibiting downward sliding movement of snow on the roof while allowing melted snow or rain to slide downwardly on the roof and to pass beneath the downwardly extended bar leg.
Patent CA-2066210-C (CA)
Title: Liquid-crystalline medium
Inventor: NUMATA HIROSHI
IPC: C09K19/44
Filed: 1991-07-16
Granted: 2004-11-09
Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I      in which X is fluorine, chlorine, CF3, OCF3 or OCHF2, ring A is trans-1,4-cyclohexylene or 1,4-phenylene, and R is alkyl, oxaalkyl, fluoroalkyl or alkenyl, in each case having up to 7 carbon atoms.
Patent CA-2068883-C (CA)
Title: Record carrier on which a main data file and a control file have been recorded, method of and device for recording the main data file and the control file, and device for reading the record carrier
Inventor: TIMMERMANS JOZEF MARIA KAREL
IPC: H04N9/80
Filed: 1991-09-18
Granted: 2002-01-01
Abstract: A record carrier (184) is described on which main data files (TV/4, TV,...,256TV) and a control file (BB; IIDB) have been recorded, the control data in the control file being intended for controlling the reproduction of representations of the main data in the main data file during or after read-out of the main data file. The main data file and the control file are derived from a main data signal and a control data signal respectively in accordance with the same formatting and coding rules. The control data sig-nal comprises packets (151) of n identical control data bit groups (150), n being an integer greater than or equal to 2. Moreover, a method and device for recording the control and main data are described. In addition, a device for reading the record carrier is disclosed.
Patent CA-2069614-C (CA)
Inventor: LENCES CHARLES F
IPC: C09B67/46
Filed: 1990-12-12
Granted: 2002-04-02
Abstract: A low molecular weight copolymer reaction product of a copolymer acid of an .alpha.-olefin and an unsaturated carboxylic ac-id, preferably an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, and at least one amino acid compound. The present invention in-cludes a method of preparing the copolymer reaction product. The reaction product has excellent compatibility with other polym-ers, particularly polyamides. The copolymer reaction product is useful in a method to flush water from pigments.
Patent CA-2070880-C (CA)
Title: Structure and method for direct calibration of registration measurement systems to actual semiconductor wafer process topography
Inventor: CORLISS DANIEL A
IPC: G03F9/00
Filed: 1992-06-09
Granted: 1996-05-28
Abstract: To calibrate a registration measurement system for use in semiconductor fabrication processes, a calibration structure is provided.  The calibration structure includes at least one zero offset registration structure and a plurality of non-zero offset registration structures.  By measuring the displacement of the zero registration structure at 0° and 180°, the tool induced shift of the registration measurement system may be determined.  Then, by measuring the displacement of the zero offset registration structure at 0°, 90°, 180°, and 270° the initial TIS determination is verified and the presence or absence of astigmatism is established.  When TIS and astigmatism have been accounted for, all of the registration structures, both zero and non-zero, are measured at an angular orientation of 0° to determine the systematic errors present in the measurement.  Once these errors are determined, the registration measurement system is calibrated to alleviate these errors.
Patent CA-2072167-C (CA)
Title: Polyisocyanates containing allophanate and isocyanurate groups, a process for their production and their use in two-component coating compositions
Inventor: POTTER TERRY A
IPC: B01J31/02
Filed: 1992-06-23
Granted: 2001-12-18
Abstract: The present invention is directed to a polyisocyanate mixture having an NCO content of 10 to 47% by weight and a viscosity of less than 10,000 mPa.s and containing isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5, wherein the allophanate groups are formed from urethane groups which are based on the reaction product of an organic diisocyanate having (cyclo)aliphatic bound isocyanate groups and a monoalcohol containing at least carbon atoms and having a molecular weight of 158 to 2500.      The present invention is also directed to a process for the production of a polyisocyanate mixture having an NCO content of 10 to 47% by weight, having a viscosity of less than 10,000 mPa.s and containing isocyanurate and allophanate groups in a molar ratio of monoisocyanurates to monoallophanates of 10:1 to 1:5 by a) catalytically trimerizing a portion of the isocyanate groups of an organic diisocyanate having (cyclo)aliphatically bound isocyanate groups b) adding 0.01 to 0.5 moles, per mole of organic diisocyanate, of a monoalcohol containing at least 10 carbon atoms and having a molecular weight of 158 to 2500 to the organic diisocyanate prior to or during the trimerization reaction of step a) and c) terminating the trimerization reaction at the desired degree of trimerization by adding a catalyst poison and/or by thermally deactivating the catalyst.      Finally, the present invention is directed to the use of these polyisocyanate mixtures, optionally in blocked form, as an isocyanate component in the two-component coating compositions.
Patent CA-2079369-C (CA)
Title: Fatty-phased water-free cosmetic compound and cosmetic treatment using the same
Inventor: RIBIER ALAIN
IPC: A61K8/00
Filed: 1992-09-29
Granted: 2001-11-20
Abstract: Anhydrous composition (such as lipstick or foundation) containing, in addition to the fatty phase consisting of oils, fats and surfactants and optionally waxes, a vesicular lipid phase containing at least one ionic or nonionic amphiphilic lipid and optionally additives. The anhydrous composition also preferably contains at least one cosmetic or dermopharmaceutical active ingredient. In the presence of an aqueous phase, these compositions release vesicles of vesicular lipid phase and potentiate the activity of the cosmetic and/or dermopharmaceutical active ingredients of the composition.
Patent CA-2079455-C (CA)
Title: Crosslinkable surface coatings and methods for producing same
Inventor: SAMPATH PASUPATHIKOIL R
IPC: C08L63/00
Filed: 1991-02-27
Granted: 2000-11-07
Abstract: A method for producing a novel evaporable dispersion is disclosed. The dispersion exhibits shelf-storage stability at room temperature for more than 1 year. Such a dispersion, upon evaporation of the evaporable components, is able to form a cross-linked surface coating on a substrate upon curing at room temperature or elevated temperature.
Patent CA-2080719-C (CA)
Title: Exposure device and printer
Inventor: REINTEN HANS
IPC: B41J2/45
Filed: 1992-10-16
Granted: 2002-12-24
Abstract: An exposure device comprising a straight row of substantially rectangular LED's, each LED comprising at least one non-emitting zone (34) having a width (a) which divides the LED into at least two equal parts (32, 33) having a width (c), a separating zone (35) of width (b) being situated between each of the LED's and the width (a) of the non-emitting zone (34) being smaller than 1.5 times the width (b) of a separating zone (35) and larger than 0.75 times the width (b) of the separating zone (35).
Patent CA-2097492-C (CA)
Title: Method for determining orientation of contour line segment in local area and for determining straight line and corner
Inventor: KANDA SHINJI
IPC: G06V10/48
Filed: 1992-10-02
Granted: 1999-05-18
Abstract: A method for determining an orientation of a line segment in a contour in a local area of a binary contour image. The number of pixels having a predetermined value and located in each orientation in the local area, is obtained, and it is determined that a line segment exists in an orientation in which the number of pixels is large. Further, when it is determined that the number of pixels located in each of a plurality of orientations and having a predetermined value, is greater than a sum of the numbers of pixels in orientations adjacent to said each orientation on both sides thereof, it is determined that a line segment exists in said each orientation. Two orientations in which large numbers of pixels are located are detected, and it is determined whether the point is a constituent of a line segment, a line segment of the sub-straight-line form, or a near-corner point, depending on angles made by the two orientations is equal to 180°, or a difference of the angles made by the two orientations from 180°. Contiguously arrayed pixels in the same orientation are detected as a line segment. A position and an orientation are obtained from points near a corner, and representative values of the positions and orientations of contiguously arrayed near-corner points are determined. (Fig. 3)
Patent CA-2097975-C (CA)
Title: Dispositif pour le traitement d'un gaz par mise en contact avec des particules de matieres solides
Inventor: MELCHIOR HENRI
IPC: B01D53/68
Filed: 1993-06-08
Granted: 1999-11-09
Abstract: Dispositif pour le traitement d'un gaz par mise en contact avec des particules de matières solides, comportant un réacteur vertical dans lequel les particules sont mises en suspension dans le courant de gaz, des moyens pour séparer les particules du courant de gaz, à sa sortie du réacteur, et des moyens pour recycler une fraction des particules dans le réacteur. Pour éviter la formation de fines lors d e la manutention des particules recyclées et améliorer les performances du dispositif, le réacteur est constitué par un tronçon de conduite vertical dont la partie inférieure plonge dans un lit de particules maintenu à l'état fluidisé, les gaz à traiter sont amenés dans le réacteur par un conduit vertical pénétrant dans la partie inférieure du réacteur, à travers le fond du récipient contenant le lit fluidisé, et des éléments de réglage du niveau du lit fluidisé sont prévus pour maintenir au-dessus de l'extrémité supérieure dudit conduit la surface libre du lit fluidisé formé dans le volume compris entre ce dernier et la partie inférieure du réacteur.
Patent CA-2100778-C (CA)
Inventor: TOPMILLER DAVID ALLEN
IPC: B29C45/78
Filed: 1991-12-09
Granted: 1999-06-08
Abstract: A method and apparatus are provided for servo control of injection molding machine (10) devices (12, 14 and 16). A signal processor (104) periodically produces analogue control signals for controlling machine mechanisms at a first loop closure interval and periodically produces digital control signals for controlling energization of machine heaters at a second loop closure interval. Values of analogue and digital control signals are determined according to control algorithms relating set point values and measured parameter values. Calculation of values of analogue control signals includes calculation of a first command value according to a first control algorithm, calculation of a second command value according to a second control algorithm and selection of the lesser of the first and second command values. Compensation for "cold" thermocouple junctions (162, 163, 16a) created at the connection of remote temperature sensing thermocouple leads and the signal processor interface circuits is provided. DC output interface circuits (528) including two stage over-current protection are provided.
Patent CA-2101086-C (CA)
Title: Pancreatin micropellets
Inventor: BOEDECKER BERND
IPC: A61K9/16
Filed: 1993-08-18
Granted: 2004-03-16
Abstract: Pancreatin-containing micropellet cores which can be coated with a gastric juice-resistant film, which have a spherical to ellipsoidal shape, the sphere diameter or the minor axis being in the range 0.7-1.4 mm, in particular 0.8 to 1.2 mm, and which have a particle size distribution in which at least 80% of the micropellet cores have a minor axis to major axis ratio in the range from 1:1 to 1:2, and a process for their production.
Patent CA-2105689-C (CA)
Inventor: ADAMS RONALD D
IPC: A61B17/00
Filed: 1993-09-08
Granted: 2004-05-11
Abstract: A tissue manipulator is provided which is insertable through an endoscopic tube to enable a surgeon to manipulate tissue inside a body cavity.   The endoscopic tissue manipulator includes an expandable tissue manipulating frame adapted to expand transversely through a longitudinal slot in a support tube to provide a spatula-shaped platform which can be manipulated by rotation of the support tube about its longitudinal axis to engage and displace large body organs away from a desired surgical site in a body cavity. The frame consists of a plurality of flexible frame members or wires adapted to flex laterally outward through the longitudinal slot in the support tube into a bow-         shaped configuration overlapping the other frame members or wires of the spatula-shaped platform.      The instrument can be provided with a single tissue manipulating frame or a pair of frames which are expandable through separate longitudinal slots in the support tube to provide a pair of spatula-shaped platforms to engage the tissue.
Patent CA-2112166-C (CA)
Inventor: GOODWIN R WENDELL
IPC: G01D5/36
Filed: 1993-12-22
Granted: 2004-11-23
Abstract: An optical sensor for monitoring position of a movable object comprising a LED and a phototransistor is provided with control circuitry, which is responsive to an output signal generated by the phototransistor for causing the LED to suspend radiation of light.      When the light reflected from a reflective area of the object falls on the phototransistor, the control circuitry turns off the LED as soon as the output of the phototransistor goes below a threshold level signifying that the phototransistor has been turned on.      When the light is absorbed by a non-reflective area of the object and the phototransistor is not turned on, the control circuitry turns off the LED after a predetermined time period, which is chosen to be slightly larger than the response time of the phototransistor.
Patent CA-2114007-C (CA)
Inventor: BURNETT DUANE A
IPC: C07D403/04
Filed: 1992-07-21
Granted: 2005-12-20
Abstract: Novel compounds of formula (I) wherein A is -CH = CH-B; -C .ident. C-B; -(CH2)p-X-B, wherein p is 0-2 and X is a bond, -NH- or -S(O)0-2-; optionally substituted heteroaryl or benzofused heteroaryl;  -C(O)-B; or (Ia), wherein k is 1-2; D is B'-(CH2)m C(O)-, wherein m is 1-5; B'-(CH2)q-, wherein q is 2-6; B'-(CH2)e-Z-(CH2)r-, wherein Z is -O-, -C(O)-, phenylene, -NR8- or -S(O)0-2-, e is 0-5 and r is 1-5, provided that the sum of e and r is 1-6; B'-(alkenylene)-; B'-(alkadienylene)-; B'-(CH2)t-Z-(alkenylene), wherein t is 0-3, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2-6; B'-(CH2)f-V-(CH2)g-, wherein V is cycloalkylene, f is 1-5 and g is 0-5, provided that the sum of f and g is 1-6; B'-(CH2)t-V-(alkenylene) or B'-(alkenylene)-V-(CH2)t-, provided that the sum of t and the number of carbon atoms in the alkenylene chain is 2-6; B'-(CH2)a-Z-(CH2)b-V-(CH2)d-, wherein a, b and d are 0-6, provided that the sum of a, b and d is 0-6; T-(CH2)s-, wherein T is cycloalkyl and s is 1-6; naphthylmethyl or optionally substituted heteroarylmethyl; B is optionally substituted phenyl; B' is naphthyl, optionally substituted heteroaryl or optionally substituted phenyl; R is hydrogen, fluoro, alkyl, alkenyl, alkynyl, or B-(CH2)h-, wherein h is 0-3; R4 is optionally substituted phenyl, indanyl, benzofuranyl, tetrahydronaphthyl, pyridyl, pyrazinyl, pyrimidinyl or quinolyl; are disclosed, as well as their use as hypocholesterolemic agents; the method of using compounds of formula (II), wherein R20 is optionally substituted phenyl, optionally substituted naphthyl, optionally substituted heteroaryl, or optionally substituted benzofused heteroaryl, R21, R22 and R23 are independently selected from H or R20; E, F and G are independently a bond; cycloalkylene;  alkylene; alkenylene; alkynylene; a substituted alkylene, alkenylene or alkynylene chain; an interrupted alkylene, alkenylene or alkynylene chain; or an interrupted alkylene, alkenylene or alkynylene chain substituted by one or more substituents; or one of R21-E and R22-F is selected from the group consisting of halogeno, OH, alkoxy, -OC(O)R5, -NR10R11, -SH or -S(alkyl); R5 is alkyl, phenyl, R14-phenyl, benzyl or R14-benzyl; R10 and R11 are independently selected from H and lower alkyl, or a pharmaceutically acceptable salt thereof, in a pharmaceutically acceptable carrier as hypocholesterolemic agents is also disclosed.